Corresponding Angles Postulate; If two lines cut by a transversal are parallel, then the corresponding angles are congruent.
Alternate Interior Angles Theorem; If two lines cut by a transversal are parallel, then alternate interior angles are congruent. Alternate Exterior Angles Theorem; If two lines cut by a transversal are parallel, then alternate exterior angles are congruent.
Same-Side Interior Angles Theorem; If two lines cut by a transversal are parallel, then same- side interior angles are supplementary.
Transversal: a line that crosses two lines or more
Alternate Interior Angles Theorem; If two lines cut by a transversal are parallel, then alternate interior angles are congruent.
Alternate Exterior Angles Theorem; If two lines cut by a transversal are parallel, then alternate exterior angles are congruent.
Same-Side Interior Angles Theorem; If two lines cut by a transversal are parallel, then same- side interior angles are supplementary.
Transversal: a line that crosses two lines or more